GTA: Cunning Sam

As a professional robber, you know that you are hot in the eyes of the ops, thus, you should not be caught while stealing. You know that it won't be long till you get caught, but this is the only job you know.
The idea here is to rob some valuable items. You might need to do it as fast as possible since you are a robber and you don't want to get caught in the act. The game gets more harder as you make some progress. You need to get out of that place as soon as you grab all the valuables.